Water-heater.



WATER HEAT-ER. APPLICATION' FILED pc.2o. |915. f

Patented Mar. yi3, 1917. 2 SHEETS-snaar 1.\

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l bl ,ri f 2J; l n v 5 6 j. TOLES.

` WATER HEATER. AP PL1ATxoN FILED nic. 2o, 191s.

Patented. Mar. 13, 1917.

2 SHEETS-SHEET Z- ans'rm KAY '.roLEs, or .SAN FRANCISCO, CALIFORNIA.

WATER-HEATER.

Y TQ all 'whomz't may concern Heater; and 1 do hereby declare thefollowing to be a'full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to 'an improved l. water heater, and it may besaid to consist in the provision of the novel and advantageous featuresand in the novel and improved construction, arrangement, and combinationof parts and devices as will be apparent from the description and claimswhich follow hereinafter. i'

One object of the invention is to provide a novel and improved waterheater in which the water moves in va thin layer or film in contact witha comparatively great areaof the heating surface of the combustioncham'- ber, and a very great proportion of the heat generated in thecombustion is constrained to pass through the water and through a deadair space before it can pass to the atmosphere by radiation.

Another object of the invention is to provide a novel and improved waterheater whereby the cold water is heated by causing it to pass in a thinlayer or film through a chamber which is disposed between a combustionchamber and a, dead air chamber or thermotic insulator. Y

Y Another object of the invention is to provide a novel and improvedwater heater in which three shells Yare constructed and arranged on aburner base to form a combustion space, a water space surroundlng` thecombination space, and a dead airspace surrounding the water space.

Another object of the invention is to provide a novel and improved waterheater having a tank arranged in the dead air chamber Surrounding thewater chamber, so that the air is heated before it is mixed with the gasfuel.

Another object of the invention is to provide novel and improvedautomatic means whereby the supply of cold water to the heater, and thesupply of air and gas and ignition of the latter, is controlled throught e operation of the hot water faucet.

Further objects of the invention are to l Specification of LettersPatent.

Patented Mar. 13, 1917.

Application filed December 20, 1915. Serial No. 67,938.

provide a novel and improved water heater 1 which is unitary andselfcontained, automatic in a high degree, convenient and effective 1nuse, and economical in action because the greater part of the heat ofcombustion must pass through the water as well asthrough the dead airspace before it can reach the atmosphere by radiation from the outershell.

Other objects and the advantages of the invention wiil be apparent tothose skilled in theart from a careful consideration of the followingdescription of the preferred form of the construction embodying theinvention, taken in connection with the accompanying drawings in which-Figure l is a broken elevational view of the water heater; Fig. 2 is abroken cross-sectional view taken on the line 2 2 of Fig. 1;

Fig. 3 is a partly whole and partly sectional view taken on the line 3-3of Fig. 1; Fig. 4

is a cross-sectional view taken on the line 4 4 of Fig. 3; andFig. 5 isa broken view showing the hot water faucet.

Referring to the drawings, the base 5 has thereon the burner 6. Shells 7and 8 of suitable metal are formed and arranged on the base 5 to providethe combustion chamber 9 and the water space or chamber 10 whichsurrounds the combustion chamber 9. An additional shell 11 is preferablyconstructed and arranged on the base 5 to surround the inner shell 7 andthe intermediate shell 8, and provide the dead air space or insulatingchamber 12. The shells 7, 8, and 11, preferably are cylindrical and havetheir upper ends provided with coversor crowns 13 and have their lowerends suitably aHiXed on the base 5. A suitable vent or relief valve 14is arranged in communication with thev v upper portion of the combustionchamber 9,

andsuitable piping 15 provided with the faucet 16 leads from the upperportion of the water chamber 10. The base 5 is preferably provided withan annular passageway 17 in communication with the lower part of thewater chamber 10, and suitable water Vsupply piping 18 is connected tothe annuioo the shoulder 23 on the sleeve 24 which latter is rotatablyvand slidably mounted on the shaft 2O and is provided with a shoulder 25between which and the frame 26 ofthe governor is interposed the spring27. The sleeve 24 is provided with a head 28 which is arranged looselyin a socket 29 provided in the sleeve 3Q`which is mounted on the shaft20 and is provided with an arm 31 which is pivotally connected to thelever 32 which latter has its upper end pivotally mounted on the base 5.A rod 33 has one of its ends pivotally 'connected to the lever 32 andhas'its other end connected to the piston of the valve 34 forcontrolling the supply of gas fuel and air to the pilot light,

and a hinged rod l35 has one of its ends piv,

otally connected to the lever 32 and has its other endl connected to thepiston of the valve 36 for controlling the supply of fuel` gas and airto the burner 6. A rotary air pump I37 lis -operatively connected to theshaft 20 and is provided with the air intake port 38 and has. connectedto its air discharge port 39, suitable piping 40 which leads to the tank41 and is provided with a suitable check valve 42. The tank 41 ispreferably arranged in the lower part of the dead air space 12 in orderto heat the air in the tank. Suitable piping 43 and 44 leads from theair tank 41 to the valves 36 and 34, and suitable Y gas fuel supplypiping 45 and 46 is connected to said valves 36 and 34. Suitable checkvalves 47 are provided in the piping 43 and 45. Suitable piping 48 isconnected to the outlet port of the valve 36 and to the burner 6 toconduct the mixture of gas fuel and air from the valve 36 to the burner6. A pipe 49 conducts gas fuel from the valve 34 to the pilot lightignition chamber 50 in the burner 6, and a pipe 51 conducts the air fromthe valve 34 to the blow pipe 52 ywhich is arranged in the passageway 53leading from the ignition chamber 50 to the upper end of the burner 6.Water under pressure`-from the city service mains-is supplied to thehydraulic motor 19 by suitable piping 54 provided with valve 55, and thewater passes from the motor 19 to the annular passageway 17 by way ofthepiping 18. In the ignition chamber 50 arearranged the electric sparkpoints 56 and 57 which are insulated from each other and carried by theplug 58 which is screwed on the kbase 5. The spark point 56 iselectrically connected by conductor 59 to suitable current supplylsource of battery 60, andthe spark points 57 are connected by theconductor. 61 tothe contact 62 which is movable to engage the stationarycontact-63 which latter is connected by the conductor 64 to the battery60. The contact 62 is mounted onf the arm 65 and is normally held awayfrom the contactl 63 by means of the spring 66 pressing against the arm65. A roller 67 on the lever 32 is adapted to bear against the arm 65and move the latter'to bring the contacts 62 and 63 together Jwhen thelever is operated I and operates the'hydraulic motor 19, where-V uponthe governor 21 acts to move the sleeves 24 and 30 and thereby imove thearm 31 which moves the lever 32 to have the roller on the latter movethe arm 65v to bring together the contacts 62 and 63 so that the currentsupply source 60 is electrically connected to the spark points 56 and 57to produce electric sparks in the ignition chamber 50. Movement of thelever 32 through the action of the governor 21 also effects movement ofthe rods 33 and 35 to open the valves 34 and 36 so that fuel gas and airmay-pass to the pilot light and to the burner 6. Operation of the rotarymotor 37 by the hydraulic motor 19 forces the air-preferablyI The airpassing to the valve-36 is mixed with the fuel gas from the piping 45and the mixture of the fuel gas and air passes by way of the piping 48from the valve 36 to the burner 6 where it is ignited by the pilotlight. The

fuel gas for the pilot light passes by way of the piping 46 to the valve34 and thence by way of the piping 49 to the ignition chamber 50 whereit is i nited by means of the spark points 56 and 5 and the iiame isblown over' the burner 6 by the blow pipe 52 which re ceives air by wayof the piping 51 which leads from the valve 34. The cold water passesfrom` the hydraulic motor 19 and through the piping 18 to the annularpassageway 17 where it is evenly distributed and passes upwardly in athin layer or film through the chamber 10 and thence through the pipin15 to the hot water faucet 16. In passing t rough the chamber 10 thewater is practically instantaneously heated because ita moves in a thinlayer or film in contact with a comparatively great area of heatingsurfaceprovided by the` combustion cham-.7.

of the invention which is defined in the appended claims.

I claim:

LA Water heater, comprising the com-- bination of a base, a burnerthereon, shells mounted on the hase, said shells formed and arranged toprovide a closed combustion chamber, said chamber having a restrictedrelief vent. there being a water space sur- .arranged to provide a`closed. combustion chamber, said lchamber having a restricted reliefvent, there being a water space surrounding th'e combustion Chamber, anda dead air space surrounding the Water space, nieans for supplying, airunder pressure to said burner, -means for supplying gas fuel to saidburner.I yautomatic means for controlling the sup-plyto theburner of thegas fuel and air under pressure and automatic means for electricallyigniting the gas fuel and air supplied to the burner.

3. A Water heater, comprising the combination of a base, a burnerthereon, an inner shell, an intermediate shell, and an outer shell, eachsubstantially cylindrical in form and having the upper parts thereofprovided ywith crowns and having the lower parts thereof connected tothe base, and arranged to provide a closed combustion chamber, saidcombustion chamber having a restricted relief vent, and there being anarrow Water space surrounding the combustion chamber and a dead airspace surrounding the water space, a hydraulic motor, a rotary air pump,operatively connected to the hydraulic motor for supplying air underpressure to said burner. means for supplying gas fuel to said burner,means operatively connected to said h vdraulic motor, adapted to controlthe supply to thc burner of gas fuel and air under pressure, andautomatic means for electrically igniting .the gas fuel and air4supplied to the burner, substantially as set forth.

' In 4testimony whereof, I have signed my name to this specification atSt. Catherines, county of Lincoln, Province of Ontario, Canada, this thday of November A. D. 1915.

JUSTIN KAY ToLEs.

